S203M-C20DC

Product ID:77128
Updated: 2026/4/3
ABB S203M-C20DC

Key Features

  • 1Provide comprehensive overload and short circuit protection with dual tripping mechanisms. 2、Ensure versatile use in residential, commercial, and industrial applications. 3、Deliver high breaking capacity up to 10 kA for robust circuit safety. 4、Feature a compact, modular design for easy installation in panels. 5、Meet global IEC/EN standards for reliable worldwide compliance.
Product Details
S203M-C20DC
ABB

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Standards
IEC/EN 60898-2 GB 10963 IEC/EN 60947-2 GB 14048
Tripping Characteristic
C
Rated Voltage (Ur)
440 V
Rated Operational Voltage
440 V DC
Rated Insulation Voltage (Ui)
440 V
Rated Impulse Withstand Voltage (Uimp)
4 kV
Input Voltage Type
DC
Rated Current (In)
20 A
Rated Short-Circuit Capacity
(400 V) 10 kA
Rated Ultimate Short-Circuit Breaking Capacity (Icu)
(440 V DC) 10 kA
Rated Conditional Short-Circuit Current (Inc)
(400 V) 10 kA
Frequency (f)
0...0 Hz
Rated Frequency (f)
0-0 Hz
Power Loss
6.78 W
Energy Limiting Class
3
Number of Protected Poles
3
Number of Poles
3
Overvoltage Category
III
Release Type
C
Options Provided
DC application
Accessories Available
Yes
Connecting Capacity
Flexible 0 ... 25 mm² Rigid 0 ... 35 mm²
Ambient Temperature
-25...55 °C
Ambient Air Temperature
Operation -25...55 °C
Degree of Protection
IP20
Pollution Degree
3
Width in Number of Modular Spacings
3
Product Net Width
0.053 m
Product Net Height
0.088 m
Product Net Depth / Length
0.044 m
Product Net Weight
0.375 kg
Built-In Depth (t2)
69 mm
ETIM 8
EC000042 - Miniature circuit breaker (MCB)
ETIM 9
EC000042 - Miniature circuit breaker (MCB)
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
WEEE B2C / B2B
Business To Business
CN8
85362010
eClass
V11.0 : 27141901
Object Classification Code
F
Manufacturer ID
2TAZ112300R0204

Specifications may be subject to change without notice